JP4021433B2 - Stator of adder motor - Google Patents

Description

  The present invention relates to a stator for an adder type electric motor in which a stator iron core is divided into a plurality of parts and a winding is directly wound, and then the divided iron core body is integrated into an annular shape.

  2. Description of the Related Art In recent years, a stator in which winding is applied to a plurality of divided iron cores and the divided iron cores are arranged in an annular shape and a method for manufacturing the same have been widely used (see, for example, Patent Document 1).

  The configuration will be described below with reference to FIGS.

  As shown in FIGS. 12 and 13, the divided tooth portion 201 is insulated with insulating materials 202 and 203, and a relay pin 205 serving as a winding start portion and a winding end portion of the winding 204 is provided. After winding, they were combined into a ring to form a stator.

Further, as shown in FIGS. 14 to 16, similarly, a stator iron core having four slots 301 is connected to the number of the slots at an intermediate portion of a yoke portion 303 that connects adjacent tooth portions 302 to each other. The winding 305 is wound by the winding machine 307 through the insulating material 304, but the yoke portion 303 extends in the circumferential direction with respect to the tooth portion 302 and is long in an arc shape. In the winding work of 305, measures such as mounting a special winding guide are required.
Japanese Patent Laid-Open No. 9-46979

  In such a conventional stator configuration, when the winding 305 is wound around the tooth portion 302 of the divided iron core body 306 by applying the former configuration to the latter as it is, the yoke portion 303 has an arc shape. Since it is long, it is necessary to take measures such as mounting the winding guide guide a 308 and the winding guide guide b 309, and the winding 305 slides on the surface of the winding guide guide a 308 and the winding guide guide b 309 to the tooth portion 302. It is difficult to ensure the winding quality because it is wound, and since the tooth portion 302 and the yoke portion 303 have an integral divided structure, the electric motor is limited by the rolling direction of the magnetic steel sheet as the iron core material. There was a problem that it was difficult to improve efficiency.

  The present invention solves the above-mentioned problem, and can wind the winding without attaching a special winding guide guide to the stator core, improving the division structure and shape of the tooth portion or the yoke portion. It is an object of the present invention to provide a stator for an inversion motor that can improve the motor efficiency by limiting the rolling direction of the electromagnetic steel sheet.

  In the stator of the internal motor of the present invention, four divided iron cores a that integrally form a tooth portion and a yoke portion, and a yoke portion that is sandwiched between the divided iron cores a are formed. A stator iron core is constituted by four divided iron cores b, and at the time of winding winding, each of the divided iron cores a and each of the divided iron cores b is divided, The divided iron core body a is attached with an insulating material, and after the insulating material is attached, the A-phase winding or the B-phase winding is directly wound so that each of the divided iron core bodies a has two pieces. An A-phase winding body and two B-phase winding bodies are formed, and after the winding is completed, the outer peripheral side of the insulating material is pressed and deformed in the inner diameter direction, and the inner peripheral side of the divided iron core b The divided iron core body b is disposed between the divided iron core body a constituting the A-phase winding wound body and the divided iron core body a constituting the B-phase winding wound body. Shi A stator of an internal rotation type motor constituting a stator iron core composed of four slots and four teeth by being integrated in an annular shape, the yoke part of the divided iron core body a The inner peripheral surface forms a surface substantially perpendicular to the central axis of the tooth portion around which the winding is wound, and the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the divided iron core body b are linear or substantially linear. It is set as the structure formed in the shape.

  According to the present invention, it is possible to provide a stator for an inversion motor that can be wound without mounting a special winding guide or the like, can ensure winding quality, and can improve motor efficiency. be able to.

  According to the present invention, four divided iron cores a that integrally form a tooth part and a yoke part, and four divided iron cores that form a yoke part sandwiched between the divided iron cores a. A stator iron core is constituted by the body b, and at the time of winding winding, each of the divided iron core bodies a and each of the divided iron core bodies b is divided. An insulating material is mounted on the A, and after the insulating material is mounted, the A-phase winding or the B-phase winding is directly wound so that each of the divided iron cores a has two A-phase winding windings. And two B-phase winding wound bodies, and after the winding winding is completed, the outer peripheral side of the insulating material is pressed and deformed in the inner diameter direction so as to be along the inner peripheral side of the divided iron core body b. The divided iron core body b is arranged between the divided iron core body a constituting the winding wound body and the divided iron core body a constituting the B-phase winding wound body so as to be integrated in an annular shape. By A stator of an internal rotation type motor constituting a stator iron core composed of four slots and four teeth, wherein the inner peripheral surface of the yoke part of the split iron core body a is wound A surface that is substantially perpendicular to the central axis of the tooth portion that is wound is formed, and the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the divided iron core body b are linear or substantially linear. Therefore, when winding A-phase winding or B-phase winding directly, it can be wound without installing a complicated winding guide, preventing damage to the winding film or disconnection, and magnetic path length. The stator of an adder type electric motor that can improve the motor efficiency by reducing the length or the like can be provided.

  In addition, it is possible to provide a stator for an inversion motor that can effectively utilize good magnetic properties in the rolling direction of the electromagnetic steel sheet and further improve the motor efficiency.

  Moreover, it is not necessary to manufacture the outer peripheral shape of the divided iron core body b3 with high accuracy, and a low-priced mold can be used, and cost can be rationalized.

  The invention according to claim 1 of the present invention forms four divided iron cores a that integrally form a tooth part and a yoke part, and a yoke part sandwiched between the divided iron cores a. A stator iron core is constituted by four divided iron cores b, and at the time of winding winding, each of the divided iron cores a and each of the divided iron cores b is divided, An insulating material is mounted on the divided iron core body a, and after the mounting of the insulating material, the A-phase winding or the B-phase winding is directly wound so that each of the divided iron core bodies a has two A A phase winding wound body and two B phase winding wound bodies are formed, and after winding winding is completed, the outer peripheral side of the insulating material is pressed and deformed in the inner diameter direction, and the inner peripheral side of the divided iron core body b is The divided iron core body b is arranged between the divided iron core body a constituting the A-phase winding winding body and the divided iron core body a constituting the B-phase winding winding body. In a ring It is a stator of an internal rotation type electric motor that constitutes a stator iron core composed of four slots and four tooth parts, and is an inner part of the yoke part of the divided iron core body a. The peripheral surface forms a surface substantially perpendicular to the central axis of the tooth portion around which the winding is wound, and the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the divided iron core body b are linear or substantially linear. It has a formed structure, and has the effect of ensuring the winding quality such as prevention of scratches on the winding wound around the stator core or prevention of disconnection, and the effect of improving the motor efficiency. .

  Moreover, it fixes by four division | segmentation iron cores a which integrally form a tooth | gear part and a yoke part, and four division | segmentation iron cores b which form the yoke part clamped by the said division | segmentation iron core body a. A child iron core is constituted, and at the time of winding winding, each of the divided iron core bodies a and each of the divided iron core bodies b is divided, and each of the divided iron core bodies a By winding the winding or the B-phase winding directly, the divided iron core body a has two A-phase winding windings and two B-phase winding windings, respectively. After the mounting is completed, the divided iron core body b is disposed between the divided iron core body a constituting the A-phase winding wound body and the divided iron core body a constituting the B-phase winding wound body. Are integrated in a ring shape to form a stator iron core composed of four slots and four teeth, which is a stator of an internal rotation type electric motor, and is a yoke of the divided iron core body a. The inner peripheral surface of the part is wound Since the surface substantially perpendicular to the central axis of the tooth portion to be wound is formed, the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the divided iron core body b are linear or substantially linear. When winding A-phase winding or B-phase winding directly, it can be wound without installing a complicated winding guide, preventing damage to the winding film or disconnection, improving motor efficiency It is possible to provide a stator for an adder motor that can be used.

  Moreover, since it was set as the structure which carried out the lamination | stacking so that the longitudinal direction of the four division | segmentation iron cores b might become the rolling direction of an electromagnetic steel plate manufacturing process, the favorable magnetic characteristic of the rolling direction of an electromagnetic steel plate can be utilized effectively, It is possible to provide a stator for an inversion motor that can improve motor efficiency.

  Further, only the arc-shaped portions on the outer diameter side of the four divided iron cores a are fitted and held with respect to the inner diameter portion of the housing, contributing to ensuring the roundness of the stator inner diameter, and the four divided iron cores b. Since the outer diameter side of the housing is configured so as not to be in contact with the inner diameter portion of the housing, it is not necessary to manufacture the outer peripheral shape of the divided iron core body b3 with high accuracy, and a low-cost mold may be used. And cost rationalization is possible.

  Moreover, since the directional electromagnetic steel sheet is used for the four divided iron cores b, the motor efficiency can be greatly improved.

  In addition, since the radial direction of the four divided iron cores a coincides with the rolling direction of the electromagnetic steel sheet, and the directional electromagnetic steel sheet is also used for the divided iron core a, the motor efficiency can be further improved. it can.

  Embodiments of the present invention will be described below with reference to FIGS.

(Embodiment 1)
As shown in FIGS. 1 to 10, the stator iron core 1 is divided into eight divided iron core bodies a2 and four divided iron core bodies b3, and the divided iron core body a2 has a rotor hole. 4 is arranged so that the tooth portion 5 is linear or substantially radial, and there are two A-phase winding wound bodies 7 around which the A-phase winding 6 is wound. Two of the B-phase winding wound bodies 9 in which the B-equipped windings 8 are wound at positions separated from each other are alternately arranged in an annular shape by sandwiching the divided iron cores b3 divided by the yoke portion 10 A stator 11 is formed. And the said divided iron core b3 is set as the structure laminated | punched and laminated | stacked so that the circumferential direction, ie, a longitudinal direction, may become the rolling direction in an electromagnetic steel plate manufacturing process. At the time of winding, the stator iron core 1 is divided into eight pieces, the insulating material 12 is attached to the four divided iron core bodies a2, and then the A-phase winding 6 or the B-phase winding 8 is attached. Directly wound by a winding machine (not shown) to form two A-phase winding winding bodies 7 and two B-phase winding winding bodies 9 respectively, and after winding winding is completed, an insulating material The outer peripheral side 12a of 12 is pressed and deformed in the inner diameter direction so as to be integrated along the inner peripheral side of the divided iron core body b3 to form four slots 13 and to constitute an annular stator.

  Further, only the arc-shaped portion on the outer diameter side of the four divided iron cores a2 is fitted and held to the inner diameter portion of the housing 14, and contributes to ensuring the roundness of the stator inner diameter, thereby providing four divided iron cores. The outer diameter side of the body b3 is configured such that a gap 15 is formed in a non-contact manner on the inner diameter portion of the housing 14.

  As described above, according to the stator of the inversion motor of Embodiment 1 of the present invention, the A-phase winding 6 or the B-phase winding 8 is directly connected to the split iron core body a2 by the winding machine (not shown). When winding, the divided iron core body b3 is removed, the winding is wound around the single divided iron core body a2, and a complicated winding guide guide or the like is installed in the winding machine with a simple structure. Since it can be wound with a winding motion, the winding can be wound without sliding on the surface of the winding guide, preventing defects such as damage to the winding film or disconnection and ensuring winding quality. Is possible. And the longitudinal direction of the four divided iron cores b3 is the same as the rolling direction in the electromagnetic steel sheet manufacturing process, which is the easy magnetization direction, and the motor efficiency can be improved.

  Further, since the outer diameter side of the four divided iron cores b3 is not in contact with the inner diameter part of the housing 14, it is not necessary to manufacture the outer peripheral part shape of the divided iron cores b3 with high accuracy, and the price is low. The mold can be used, and the cost can be rationalized.

(Embodiment 2)
As shown in FIG. 11, the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the four divided iron cores b3 are configured to be linear or substantially linear.

  Moreover, it is set as the structure which uses a grain-oriented electrical steel sheet for the four division | segmentation iron core bodies b3.

  Further, the radial direction of the four divided iron cores a2 is made to coincide with the rolling direction of the electromagnetic steel sheet, and the directional electromagnetic steel sheet is also used for the divided iron core body a2.

  As described above, according to the stator of the inversion motor of Embodiment 2 of the present invention, the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the four divided iron cores b3 are linear or substantially linear. It is possible to reduce the magnetic path length of the divided iron core body b3 and to effectively utilize the good magnetic properties in the rolling direction.

  Also, by using grain-oriented electrical steel sheets with extremely good magnetic properties in the rolling direction as the four divided iron cores b3, the magnetic properties in the yoke part can be kept extremely good and the motor efficiency can be greatly improved. Is possible.

  Further, by making the joint direction of the four divided iron cores a2 coincide with the rolling direction of the electromagnetic steel sheet, the motor efficiency is further improved by adopting a structure in which the directional electromagnetic steel sheet is also used for the divided iron core a2. It becomes possible.

The front view which shows the stator iron core of the internal rotation type | mold electric motor of Embodiment 1 of this invention The perspective view which shows the division | segmentation iron core body a of the stator of the same adder type electric motor The perspective view which shows the division | segmentation iron core board b of the stator of the same adder type electric motor Front view showing the stator of the adder motor The front view which shows the state which mounted | wore the insulating material to the division | segmentation iron core body a of the stator of the same adder type electric motor The partially broken front view which shows the state which wound the winding to the division | segmentation iron core body a of the same internal type motor The front view which shows the state which deform | transformed the outer peripheral part of the insulating material of the division | segmentation iron core body a of the internal-rotation type | mold electric motor in circular arc shape Front view showing a state in which four divided iron cores a in which the windings of the stator of the internal motor are wound are arranged in an annular shape The partially broken front view which shows the state which combined the division | segmentation iron core body a and the division | segmentation iron core body b which wound the coil | winding of the stator of the same internal type motor The partially broken front view which shows the state which press-fitted and fitted the stator iron core of the internal-rotation type motor to the housing Front view showing a stator iron core of an adder type electric motor according to a second embodiment of the present invention. The perspective view which shows the state by which the coil | winding was wound by the tooth | gear part of the stator of the conventional internal rotation type motor Top view showing the stator part Plan view of the stator of another conventional adder motor Plan view showing the divided part of the stator The top view which shows the state which winds a coil | winding to the part which the same stator divided

Explanation of symbols

1 Stator iron core 2 Split iron core body a
3 split iron core body b
4 Rotor hole 5 Tooth part 6 A phase winding 7 A phase winding winding body 8 B phase winding 9 B phase winding winding body 10 Relay part 11 Stator 12 Insulating material 12a Outer side of insulating material 13 Slot 14 Housing 15 Clearance

Claims (6)

Stator iron by four divided iron cores a integrally forming a tooth part and a yoke part, and four divided iron cores b forming a yoke part sandwiched between the divided iron cores a A core is formed, and when winding the winding, each divided iron core body a and each divided iron core body b are divided, and an insulating material is attached to each divided iron core body a. After mounting the insulating material, the A-phase winding or the B-phase winding is directly wound so that each of the divided iron cores a has two A-phase winding windings and two B-phase windings. After winding winding is completed, the outer peripheral side of the insulating material is pressed and deformed in the inner diameter direction so as to be along the inner peripheral side of the divided iron core body b. By arranging the divided iron core body b between the divided iron core body a constituting and the divided iron core body a constituting the B-phase winding wound body and integrating them in an annular shape, slot A stator of an internal rotation type electric motor constituting a stator iron core composed of four tooth portions, wherein an inner peripheral surface of a yoke portion of the divided iron core body a is a tooth around which a winding is wound. An inner-rotation type electric motor having a configuration in which a surface substantially perpendicular to the central axis of the portion is formed and the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the divided iron core body b are formed linearly or substantially linearly stator. Stator iron by four divided iron cores a integrally forming a tooth part and a yoke part, and four divided iron cores b forming a yoke part sandwiched between the divided iron cores a A core is formed, and at the time of winding winding, each of the divided iron core bodies a and each of the divided iron core bodies b is divided, and each of the divided iron core bodies a is provided with an A-phase winding. Alternatively, by winding the B-phase winding directly, each of the divided iron cores a becomes two A-phase winding windings and two B-phase winding windings, and the winding winding is completed. Thereafter, the divided iron core body b is arranged between the divided iron core body a constituting the A-phase winding wound body and the divided iron core body a constituting the B-phase winding wound body, and is annular. Is a stator of an internal rotation type electric motor that constitutes a stator iron core composed of four slots and four tooth portions, and is a stator part of the divided iron core body a. Inner surface is wound with winding An inner rotation type in which a surface substantially perpendicular to the central axis of the tooth portion is formed, and the outer diameter side shape and the inner diameter side shape in the longitudinal direction of the divided iron core body b are linear or substantially linear. Electric motor stator. 3. The stator of an internal rotation type electric motor according to claim 1, wherein the four divided iron cores b are formed by punching and stacking so that a longitudinal direction thereof is a rolling direction in the electromagnetic steel sheet manufacturing process. Only the arc-shaped portion on the outer diameter side of the four divided iron cores a is fitted and held with respect to the inner diameter portion of the housing, contributing to ensuring the roundness of the stator inner diameter, and the outer sides of the four divided iron cores b. The stator of the internal rotation type electric motor according to claim 1 or 2, wherein the radial side is configured not to contact the inner diameter portion of the housing. 3. The stator of an internal rotation type electric motor according to claim 1, wherein directional electromagnetic steel sheets are used for the four divided iron cores b. The internal rotation mold according to claim 1 and 2, wherein the radial direction of the four divided iron cores a is made to coincide with the rolling direction of the electromagnetic steel sheet, and the directional electromagnetic steel sheet is also used for the divided iron core body a. Electric motor stator.

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